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onine survey software | C > . Piazza xUniversity of Kentucky-Cix ibiscms/mod/ibis/view.php?id-2068648 O 11/30/2015 05:00 PM 0 28.1301 1/23/2015 10:22 PM Print Calculator Periodic Table Question 12 of 15 IncorrectIncorrect Incorre sapling leaming Solve the Beer's Law equation below for molar absorptivity, e, by filling in the following equation: Using the equation you filed in above, show the simplified units for molar absorplivity in the following equation. Do not include the variables above in the units equation. E units Give Up & View Solution (O Check Answer ONet Previous Hint 29

Explanation / Answer

according to beer law

A = e x b x c

e = A / ( b x C)

here

A = absorbance

we know that

absorbance does not have any units

b = path length ( cm)

C = concentration ( M)

now

for the unit of e

we get

e = 1 / cm M

e = M-1 cm-1

so

the unit of e is M-1 cm-1

or

we know that

M = moles / volume = mol / L

so

unif of e are

1) M-1 cm-1

or

2) L mol-1 cm-1

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